102 строки
4.5 KiB
C
102 строки
4.5 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2008 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2011-2012 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2013-2014 Los Alamos National Security, LLC. All rights
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* reserved.
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*
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* Author(s): Torsten Hoefler
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*
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*/
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#include "ompi_config.h"
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#include "ompi/mpi/c/bindings.h"
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#include "ompi/runtime/params.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/errhandler/errhandler.h"
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#include "ompi/memchecker.h"
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#include "ompi/mca/topo/topo.h"
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#include "ompi/mca/topo/base/base.h"
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#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Dist_graph_create_adjacent = PMPI_Dist_graph_create_adjacent
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "ompi/mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Dist_graph_create_adjacent";
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int MPI_Dist_graph_create_adjacent(MPI_Comm comm_old,
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int indegree, const int sources[],
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const int sourceweights[], int outdegree,
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const int destinations[], const int destweights[],
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MPI_Info info, int reorder,
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MPI_Comm *comm_dist_graph)
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{
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mca_topo_base_module_t* topo;
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int i, comm_size, err;
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MEMCHECKER(
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memchecker_comm(comm_old);
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);
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if (MPI_PARAM_CHECK) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (ompi_comm_invalid(comm_old)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
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FUNC_NAME);
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} else if (OMPI_COMM_IS_INTER(comm_old)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
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FUNC_NAME);
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} else if (indegree < 0 || outdegree < 0 || NULL == comm_dist_graph) {
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return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG, "MPI_Dist_create_graph_adjacent 1");
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} else if ((indegree > 0 &&
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(NULL == sources || NULL == sourceweights || MPI_WEIGHTS_EMPTY == sourceweights)) ||
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(outdegree > 0 &&
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(NULL == destinations || NULL == destweights || MPI_WEIGHTS_EMPTY == destweights))) {
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return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG, "MPI_Dist_create_graph adjacent 2");
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}
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comm_size = ompi_comm_size(comm_old);
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for (i = 0; i < indegree; ++i) {
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if (sources[i] < 0 || sources[i] >= comm_size) {
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return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG,
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FUNC_NAME);
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} else if (MPI_UNWEIGHTED != sourceweights && sourceweights[i] < 0) {
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return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG,
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"MPI_Dist_create_graph adjacent 3");
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}
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}
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for (i = 0; i < outdegree; ++i) {
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if (destinations[i] < 0 || destinations[i] >= comm_size) {
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return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG,
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FUNC_NAME);
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} else if (MPI_UNWEIGHTED != destweights && destweights[i] < 0) {
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return OMPI_ERRHANDLER_INVOKE(comm_old, MPI_ERR_ARG,
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"MPI_Dist_create_graph_adjacent 4\n");
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}
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}
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}
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/* Ensure there is a topo attached to this communicator */
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if(OMPI_SUCCESS != (err = mca_topo_base_comm_select(comm_old, NULL,
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&topo, OMPI_COMM_DIST_GRAPH))) {
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return OMPI_ERRHANDLER_INVOKE(comm_old, err, FUNC_NAME);
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}
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/* XXX -- CONST -- do not cast away const -- update mca/topo */
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err = topo->topo.dist_graph.dist_graph_create_adjacent(topo, comm_old, indegree,
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(int *) sources, (int *) sourceweights, outdegree,
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(int *) destinations, (int *) destweights, info,
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reorder, comm_dist_graph);
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OMPI_ERRHANDLER_RETURN(err, comm_old, err, FUNC_NAME);
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}
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